This is topic Back-Pressure Question in forum Tech Talk at Northern California Ford Owners  .


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Posted by lky_3 (Member # 1116) on :
 
I have a NA 306 running 10:1 compression with GT40P Heads lightly ported, with Long tubes and Off Road H and 2 Chamber flows dumped. Question is: Am I going to have enough backpressure for a good low end TQ? Remember...NO Cats. If not what are my options: Buy a High-Flow catted X/H. Put some High-Flows on the currnet (welded). Lose the LT's and go with shorties. opinions please. Thanks.
 

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Posted by average ass internet gangSTAR (Member # 8560) on :
 
what gears do you got
 

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Posted by average ass internet gangSTAR (Member # 8560) on :
 
build the rear end for low end and lt's give you torq

[ September 10, 2008, 04:22 AM: Message edited by: average ass internet gangSTAR ]
 

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Posted by lky_3 (Member # 1116) on :
 
3.73
 

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Posted by 96mysticman (Member # 8327) on :
 
id put more gears theres a guy in sac with your set up runnin 11.20s n/a with 4.10s
 

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Posted by JohnB (Member # 969) on :
 
If the car is tuned correctly, you'll have no issues. 3.73 is plenty of gear.
 

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Posted by lky_3 (Member # 1116) on :
 
Sounds good. Thanks.
 

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